21540304

素因数分解:

$2^4\times {\mathrm{557}}^1\times {\mathrm{2417}}^1$

素因数の和:2982

約数の個数: 20

約数和(自身を含む): 41826564

約数和(自身を除く): 20286260

約数列:

[1, 2, 4, 8, 16, 557, 1114, 2228, 2417, 4456, 4834, 8912, 9668, 19336, 38672, 1346269, 2692538, 5385076, 10770152, 21540304]

約数ペア:

[(1, 21540304), (2, 10770152), (4, 5385076), (8, 2692538), (16, 1346269), (557, 38672), (1114, 19336), (2228, 9668), (2417, 8912), (4456, 4834)]